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US 2016/0281037 A1Published application
Compositions, devices, systems and methods relating to photo- and thermal- oxidative bleaching of pink-stains
AssigneeGestalt Scientific Corporation
InventorsScott Robert Leatham, Scott Anthony Laster, Heinz-Gunter Manfred Zieber
Life of this patent
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Abstract
Systems, methods, etc., directed to removing or modifying pink-stain in a substrate. For example, removal of pink-stains caused by Streptoverticillium reticulum in marine vinyl, or to enhance the speed, specificity, and efficacy of other bleaching processes of autofluorescent organic stains in those and other substrates.
Claims61
A method for removing a pink-stain from a substrate, the method comprising:
- a) identifying a pink-stain in a substrate wherein the pink-stain is produced from a microorganism;
- b) applying a chemically effective amount of an oxidizing agent to the pink-stain and substrate;
- c) applying a chemically effective amount of a treatment wavelength band of light to the pink-stain and substrate wherein the treatment wavelength band of light matches an absorption wavelength band of the pink-stain and wherein the treatment wavelength band of light is at least about 31 W/m2;
- wherein the treatment wavelength band of light is applied to the pink-stain and substrate for a time sufficient to remove the pink-stain without substantially changing the-a color of the substrate.
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Dependencies are inferred from the claim text.